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在３种质地（砂壤、轻壤、中壤）、３种盐化程度（中度盐化、重度盐化、盐土）的土壤上进行了秸秆覆盖条件下的水分运动的模拟试验，结果表明秸秆覆盖可明显降低土壤水分蒸发，与不覆盖相比，覆盖１．５ｔ／ｈｍ２土壤水分蒸发减少量，砂壤中度盐化土为２６．８７％，砂壤重度盐化上为３９．２４％，轻壤重度盐化土为３９．３１％，轻壤盐土为４０．２０％，中壤重度盐化土为４０．２４％，中壤盐上为５５．５６％。覆盖６．７５ｔ／ｈｍ２土壤水分蒸发减少量，砂壤中度盐化土为６９．０９％，砂壤重度盐化土为７１．１８％，轻壤重度盐化土为７５．９４％，轻壤盐土为７３．８６％，中壤重度盐化土为７４．２５％，中壤盐土为８８．１３％，并且覆盖量在１．５～６．７５ｔ／ｈｍ２的范围内，土壤水分蒸发量随着覆盖量的增加而逐渐减少。
The simulated experiment of water movement under the condition of straw mulch was carried out in three kinds of soil (sandy soil, light soil, middle soil) and three kinds of soil with salinization (moderate salinization, severe salinization, salt soil) Straw cover can significantly reduce soil water evaporation, compared with no coverage, covering 1.5t / hm2 soil moisture evaporation reduction, sand soil moderate saline soil is 26.87%, heavy sandy soil saltification was 39.24 %, That of lightly salinized soils is 39.31%, that of mild soils is 40.20%, that of heavily soiled soils is 40.24% and that of middle soils is 55.56%. Covering 6.75t / hm2 reduction of soil water evaporation, sandy soil moderate salinized soil 69.09%, sandy soil salinized soil 71.18%, light soil heavily salinized soil 75.94%, light 73.86% of soil saline soil, 74.25% of heavily saline soil in mid-soil, 88.13% of medium-salt soil, and the coverage is 1.5 ~ 6.75t / hm2. Soil water evaporation With the increase of coverage gradually decreased.